Martin Richard Chappell (Chinese: 卓保怡), born in Nottingham, England is a musician-turned-Hong Kong sound editor.
He is most notable for serving as a sound editor on Hong Kong films made by Johnnie To and his production company, Milkyway Image.
Under the influence of his pianist grandfather, Martin Chappell decided to follow his interest in sound at early age - inspired by the works of Stockhaussen and Peter Murphy's Bauhaus.
Chappell has worked on over 60 Hong Kong films, collaborating with the likes of Ringo Lam, Johnnie To and Tsui Hark.
Known to be fluent in Cantonese, his film credits include The Longest Nite, The Mission, Mad Detective, Running on Karma and Blood Brothers.